public override void BuyProduct()
{
ProBuy();
if (realBuyPerson == null)
{
realBuyPerson = new RealBuyPerson();
}
realBuyPerson.BuyProduct();
}
public override void BuyProduct()
{
Console.WriteLine("通过代理类访问真实实体对象的方法");
if (_realSubject == null)
{
_realSubject = new RealBuyPerson();
}
this.PreBuyProduct();
// 调用真实主题方法
_realSubject.BuyProduct();
this.PostBuyProduct();
}